Ecovacs DEEBOT N20 Pro Plus

The dock automatically empties the robot's 400 mL onboard bin into a 1.5 L bag. That bag typically holds several weeks of debris before it needs changing, so day-to-day emptying is off your plate.

Yes. It saves multi-level maps for up to 4 floors, so you can carry it between stories and it recognizes each layout. No-go zones let you block off areas on any level.

The robot stands 3.8 inches tall, letting it slide under many sofas, beds, and cabinets. The dock is larger, at about 17.8 inches wide and 15 inches tall, so plan for floor space near an outlet.

It uses a vibrating mop pad with 3 adjustable moisture levels, so you can set how wet the floors get. This suits light, routine wiping of hard floors rather than deep scrubbing of dried messes.

It clears obstacles up to 20 mm high, which handles most door sills and low transitions between rooms. Taller thresholds or thick rug edges above that height may stop it.